KR20230167895A - Smoking article with prevention of nicotine transfer, and aerosol generating system including the same - Google Patents

Abstract

The present invention includes a pH adjustment medium unit; and a paper segment containing a smoke-and-release material, and a smoking article in which nicotine transfer is prevented, and an aerosol generating system including the same, wherein the smoking article includes a pH-adjusted medium portion to enable non-heated nicotine transfer. And, by including a paper segment containing a smoke-and-release material, nicotine transfer phenomenon is prevented, the reconciliation period can be shortened, and a stable storage life is secured accordingly.

Description

Smoking article with prevention of nicotine transfer, and aerosol generating system including the same {Smoking article with prevention of nicotine transfer, and aerosol generating system including the same}

The present invention relates to a smoking article in which nicotine transfer phenomenon is prevented and an aerosol generating system including the same.

Recently, a number of smoking articles have been proposed that are heated rather than combusted. These non-combustible smoking articles, unlike conventional smoking articles, are used by inhaling aerosol generated by heating the tobacco medium without burning the tobacco medium. One type of such heated smoking article is a smoking article using electric heating.

By adjusting the pH of the medium of the smoking article, volatile free nicotine can be generated and nicotine can be transferred in a non-heating manner.

In this regard, if the medium part of the smoking product has an acidic pH, non-heated nicotine transfer is difficult, and if it has an alkaline pH, non-heated nicotine transfer increases, but due to its high volatility, it is used in inner liners and packs in addition to stick materials over time. Nicotine transfer occurs to packaging materials such as wrapping paper. Since nicotine transfer throughout the year is greatly influenced by the nicotine transferred to the materials inside the stick, nicotine transferred to packaging materials such as wrappers can reduce the amount of nicotine transfer throughout the year.

In other words, as a result, it was necessary to adjust the pH of the medium part of the smoking product, which can provide great satisfaction from smoking, to slightly alkaline, such as pH 8 to 9.5. However, the medium part with an alkaline pH is volatile, so it is used in packaging such as inner liners and upper wrappers. Nicotine transfer occurs to materials.

For this reason, smoking articles containing a medium with a slightly alkaline pH can transfer nicotine in a non-heated manner, but after manufacturing is completed, a conditioning period for transferring nicotine to materials in the stick, such as an acetate filter, is essential, and nicotine in the stick is essential. In order to prevent taste changes after reaching transition equilibrium, a method to prevent loss due to nicotine transfer to packaging materials is needed.

Korean Patent Publication No. 2021-0121968

The present invention, in order to solve the above-mentioned problems, provides a smoking article that includes a pH-adjusted medium and is applied with a smoke-and-release material that can prevent nicotine transfer.

Additionally, the present invention provides an aerosol generating system using the smoking article according to the present invention.

However, the problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The present invention includes a hydrogen ion concentration index (pH) adjustment medium unit; and

comprising a paper segment comprising a light-absorbing material,

Provided is a smoking article that prevents nicotine transfer.

In one embodiment of the present invention, the smoking article may further include a thermally conductive wrapper surrounding at least one of the medium portion and the paper segment.

In another embodiment of the present invention, the thermally conductive wrapper may be one or more selected from the group consisting of aluminum, gold, silver, and copper.

In another embodiment of the present invention, the pH of the pH adjustment medium may be 8 to 9.5.

In another embodiment of the present invention, the pH adjustment medium may include volatile nicotine.

In another embodiment of the present invention, the paper segment may be disposed on one side or both sides of the medium portion.

In another embodiment of the present invention, the absorption and release material may be one or more selected from the group consisting of activated carbon, zeolite, alumina, silica gel, and bentonite.

In another embodiment of the present invention, the smoking article may be a heated smoking article.

In another embodiment of the present invention, the smoking article may further include a tube filter unit and a filter unit.

In addition, the present invention, in the aerosol generating system,

An aerosol generating device including a battery and a heater that generates heat by power supplied from the battery; and

It provides an aerosol generating system, including a smoking article according to the present invention, which is accommodated in the aerosol generating device and generates an aerosol by heating by the heater.

When the pH of the medium portion of a conventional smoking article is adjusted to improve the satisfaction of smoking, the free nicotine in the medium portion continues to transfer within the smoking article, so a considerable period of conditioning is required to reach an equilibrium state with uniform quality. However, in the case of the present invention, The smoking article further includes a paper segment with a moisture-release material applied along with a pH-adjusted medium, which shortens the product mixing period through rapid adsorption of volatile free nicotine in a short period of time. It is characterized by shortening the product harmony period and securing a stable shelf life of the product. In addition, by preventing the transfer of nicotine to areas that do not affect nicotine transfer in smoking products (such as the final shell, inner liner, or outer packaging), the loss of the amount of nicotine that can be transferred during smoking is prevented, and the filter It allows maintaining stability.

In addition, when using a smoking article, the paper segment to which the smoke-release material is applied is heated to desorb and transfer the nicotine adsorbed on the smoke-release material, thereby preventing loss of nicotine to other materials, and at the same time, non-heated smoke containing volatile nicotine. Since it is possible to transfer nicotine, a high sense of satisfaction from smoking can be obtained.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a cross-sectional view of a smoking article according to an exemplary embodiment of the present invention.
Figure 2 is a cross-sectional view of a smoking article according to another exemplary embodiment of the present invention.
Figure 3 is a cross-sectional view of a smoking article according to another exemplary embodiment of the present invention.
Figure 4 is a cross-sectional view of a smoking article according to another exemplary embodiment of the present invention.
Figure 5 is a cross-sectional view of an aerosol generation system according to an exemplary embodiment of the present invention.
Figure 6 is a cross-sectional view of an aerosol generation system according to another exemplary embodiment of the present invention.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiments, if it is determined that detailed descriptions of related known technologies may unnecessarily obscure the gist of the embodiments, the detailed descriptions are omitted.

Throughout the specification, when a member is said to be located “on” another member, this includes not only cases where a member is in contact with another member, but also cases where another member exists between the two members.

Throughout the specification, when a part “includes” a certain component, this does not mean excluding other components, but rather means that it can further include other components.

Throughout the specification, the term "smoking article" means any product that can be smoked, whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes; It may refer to any product that can provide a smoking experience.

In addition, throughout the specification, ‘medium portion’ refers to the part or area that contains the smokable material. In other words, it can mean a part that contains a substance that can generate aerosol and can deliver nicotine to the user.

Throughout the specification, 'paper segment' refers to a part or portion including a paper material and a paper filter in contact with the medium portion.

Throughout the specification, the hydrogen ion concentration index is an indicator indicating the amount of hydrogen ions present in a material, and may be expressed as pH in this specification.

Throughout the specification, the terms "upstream" and "downstream" refer to the part where air enters from the outside to the inside of the smoking article when a user inhales outside air using the smoking article, with "upstream" being the part of the smoking article containing a combustible heat source. The part where air flows from the inside of the product to the outside is “downstream.” The terms “upstream” and “downstream” may be used to indicate relative positions or directions between parts or segments that make up a smoking article.

Throughout the specification, 'absorption/release material' refers to a material in which adsorption and release occur or can occur. In the present invention, it generally refers to a material that is easy to adsorb and the adsorbed material can be released by physical treatment (for example, heating).

Throughout the specification, “aerosol generating device” may mean a device capable of generating an aerosol. The aerosol contains volatile compounds.

Hereinafter, the pH adjustment medium unit 200 of the present invention; and

comprising a paper segment (100) comprising a light-absorbing material (101),

The smoking article 1000 will be described in detail with reference to examples and drawings. However, the present invention is not limited to these examples and drawings.

As shown in Figure 1, the present invention includes a pH adjustment medium unit 200; and

This corresponds to a smoking article (1000) comprising a paper segment (100) comprising a smoke-and-release material (101).

According to one embodiment of the present invention, the paper segment may be disposed on one side or both sides of the medium portion. The paper segment may be disposed on one side of the medium portion, that is, on the upstream side of the medium portion, as shown in FIG. 1. Alternatively, a paper segment may be placed on the downstream side of the medium portion as shown in FIG. 3.

Alternatively, as shown in Figure 2, paper segments may be located on both sides of the medium portion. As shown in FIG. 2, by applying a paper filter with a absorption and release material on both sides of the medium, it may be possible to shorten the conditioning period by allowing the absorption and release material to quickly adsorb free nicotine (free-base nicotine), and nicotine It prevents nicotine loss by preventing the transfer of nicotine to other materials that do not affect the transition (final shell, inner liner, or carton wrapper, etc.), and other segments such as filter parts and tube filter parts included in the smoking article. Allows them to function stably

According to one embodiment of the present invention, the paper segment includes a moisture absorption and release material, and the moisture absorption and release material may be at least one selected from the group consisting of activated carbon, zeolite, alumina, silica gel, and bentonite. However, the above types are examples and are not limited to the above-mentioned content as long as it is a material that can easily adsorb free nicotine and can be released by treatment such as heating.

The absorption and release material may have an average particle diameter of 0.1 to 1000 μm, and may preferably be a porous material such as activated carbon that contains pores and can easily adsorb nicotine. ‘Porous’ refers to a state in which a solid has pores (gaps) inside or on the surface. The absorption/release material may have a specific surface area of 300 m2/g or more and a porosity of 10 to 80%. The porosity refers to the volume ratio between the substrate constituting the porous material and the pores present within the substrate. If the porosity is less than 10%, nicotine may not be easily adsorbed due to insufficient porosity, 80 If it exceeds %, the amount of nicotine adsorbed may be excessive and the heat treatment time may be extended.

The moisture-release material may be included in an amount of 1 to 30% by weight based on 100% by weight of the total weight of the paper segment. If the moisture-releasing material is included in less than 1% by weight, nicotine adsorption may not occur sufficiently, and if it is included in more than 30% by weight, it may not be sufficiently combined with the paper and dust may be generated.

The moisture-absorbing and releasing material may be included by spraying the absorbing and releasing material onto a paper base paper on which a crimp is formed. The absorbing and releasing material may utilize a binder so that it can be easily combined with the paper base. The binder is a material having a viscosity above a predetermined level, and is not limited thereto, but may be, for example, glycerin, propylene glycol, guar gum, starch, ethylene vinyl acetate, gum arabic, polyvinyl alcohol, or methylcellulose.

The absorbent material may be mixed in advance with a binder and the absorbent material, and then the mixed material may be sprayed, applied, or coated on the paper base, or the binder may be treated in advance on the paper base by spraying, applying, or coating, and the binder It can be incorporated into the paper base by spraying an absorbent material onto the treated paper base. The paper base containing the absorbent material as described above can be rolled to have a certain thickness to manufacture paper segments.

According to one embodiment, the amount of binder applied to the surface of the paper base may be 4 mg/mm or less, 3 mg/mm or less, 2 mg/mm or less, or 1 mg/mm or less, and preferably, 0.5 mg/mm. /mm to 4 mg/mm, 0.5 mg/mm to 3 mg/mm, or 0.5 mg/mm to 2 mg/mm.

The basis weight of the paper base may be 10 to 120 g/m ² . If the basis weight of the base paper is less than 10 g/m ² , the hardness of the paper segment may weaken, which may affect the quality of the entire smoking article. If it exceeds 120 g/m ² , the base paper is wound and manufactured in the form of paper segments. It may become difficult to do.

As an example, the paper segment may have a diameter of 4 mm to 30 mm and a circumference of 14 mm to 29 mm. Additionally, the length may be 10 mm to 70 mm, but is not limited thereto.

According to one embodiment of the present invention, the smoking article of the present invention includes a pH adjustment medium portion, and the pH of the medium portion is 8 to 9.5. The medium portion of the present invention has a pH of 8 to 9.5, so that the nicotine contained in the medium portion can be in a volatile, free-base state. Because of this, the smoking article of the present invention can smoothly achieve non-heated nicotine transfer when used. However, in the case of including a pH adjustment medium having a pH of 8 to 9.5, after manufacturing is completed, nicotine is transferred to materials in the stick such as an acetate filter to ensure uniform nicotine content and uniform quality. A reconciliation period was essential to allow my nicotine transition to reach equilibrium. Therefore, by including adsorption material in the paper segment on one or both sides of the medium, the conditioning period to maintain uniform quality is shortened, and after the conditioning period, other materials with which smoking articles are packaged (final shell, inner liner, upper packaging paper, etc.) ) to prevent nicotine loss due to nicotine transfer to the

According to one embodiment of the present invention, the pH adjustment medium portion of the present invention contains volatile nicotine. The pH adjustment medium portion of the present invention contains volatile nicotine, and is characterized in that it is easy to transfer nicotine in a non-heated manner during smoking. The volatile nicotine is not only contained in the pH adjustment medium portion, but also comes from the pH adjustment medium portion. It may be transferred and all included in the paper segment.

The pH adjustment medium unit includes an aerosol-generating material, and may include, for example, smoking materials based on tobacco raw materials such as paper-type leaflets, slurry-type leaflets, granular tobacco, and cut tobacco. Additionally, the medium portion may have a structure in which the above-described smoking material is wrapped in cigarette paper, or may be a filter block containing the smoking material. Alternatively, the smoking material may be included in the cavity by applying a cavity filter method.

The medium of the present invention can adjust pH by including a pH adjuster in addition to the smoking material.

The pH adjusting agent is carbonates including calcium carbonate, monocarbonate, bicarbonate and sesquicarbonate, acetate, glycinate, gluconate, borate, glycerophosphate or alkali metal or citrate of ammonium, monohydrogen phosphate, It may be one or more types selected from the group consisting of phosphate systems including dihydrogenphosphate and trihydrogenphosphate, metal hydroxides such as sodium hydroxide and potassium hydroxide, and mixtures thereof.

The medium portion of the present invention can be in granular form by including a binder in addition to the smoking material. The binder may use ingredients such as flurane, dextrin, cellulose, or glycerin, but is not limited thereto.

According to one embodiment of the present invention, the smoking article according to the present invention may be a heated smoking article. A heated smoking article refers to an article in which smoking is performed by applying heat by a heating means such as a heater without burning it.

According to one embodiment of the present invention, the smoking article may further include a thermally conductive wrapper surrounding at least one of the medium portion and the paper segment. By including the thermally conductive wrapper, nicotine adsorbed on the smoke-and-release material can be released more effectively. In general, when the thermally conductive wrapper is not included, smoking can be performed by heating to a temperature of around 200°C, and when the thermally conductive wrapper is included, smoking can be performed even at a temperature below 200°C.

As an example of the arrangement of the thermally conductive wrapper within the smoking article, it may surround both the medium portion and the paper segment, as shown in FIG. 4(a). Alternatively, as shown in FIG. 4(b), the thermally conductive wrapper may surround only the paper segment portion.

The thermally conductive wrapper may be paper, flax, wood pulp, or polymer material containing a thermally conductive material. The thermally conductive material may be one or more selected from the group consisting of aluminum, gold, silver, copper, or carbon nanotubes, but is not limited to the material as long as it is a material that can transfer heat generated from the heater to the paper segment or medium portion. No. Preferably, the thermally conductive wrapper of the present invention may be in the form of aluminum foil laminated to paper.

The thickness of the thermally conductive wrapper may be about 30 μm to 300 μm. If the thickness of the wrapper is less than 30 μm, the effect on heat transfer may be reduced, and if it exceeds 300 μm, it may affect airflow.

According to one embodiment of the present invention, the smoking article may further include a tube filter unit and a filter unit.

According to one embodiment of the present invention, the smoking article may further include a tube filter part in addition to the medium part and the paper segment. The tube filter unit can collect aerosols generated from tobacco materials to the center of the stick and support the tobacco materials so that they are not pushed downstream. The tube filter unit may be made of paper material, polymer material, etc., and any material used in heated cigarettes may be included without being limited to the above-mentioned materials.

According to one embodiment of the present invention, the smoking article includes a filter portion. For example, the filter unit may be a mono filter, a double filter, or a triple filter. Additionally, the filter unit may include at least one filter selected from a porous matrix structure, a tube structure, and a paper tube structure. The filter may include a fibrous, filamentous, or both filter tow containing at least one of polymer, paper, cellulose acetate, activated carbon, and carbon. However, it is not limited to this. In some embodiments, the filter material may further include at least one filter material well known in the art, such as an adsorbent containing carbon, activated carbon, etc.

As an example, the diameter of the smoking article may be 4 mm to 10 mm, and the circumference may be 14 mm to 29 mm. Additionally, the length may be 45 mm to 100 mm, but is not limited thereto.

In addition, the present invention provides an aerosol generating device (2000) including a battery (500), a heater (600) that generates heat by power supplied from the battery (500), and a vaporizer (1100); and the above-described smoking article 1000, which is accommodated in the aerosol generating device 2000 and generates an aerosol by heating by the heater 600.

In this specification, “aerosol generating device” may refer to a device that generates an aerosol using a tobacco medium to generate an aerosol that can be inhaled directly into the user's lungs through the user's mouth.

By way of example, the aerosol generating device is as shown in Figure 5. However, FIG. 5 shows only components related to the embodiment of the present invention, and those skilled in the art will recognize that other general-purpose components other than the components shown in FIG. 5 are further included. You can see that it is possible. Hereinafter, the components of the aerosol generating device 2000 will be described.

The aerosol generating device may further include a controller 800 and an accommodation space 900 in addition to a heater 600, a battery 700, and a vaporizer 1100 in which smoking articles are accommodated. However, this is only a preferred embodiment for achieving the purpose of the present disclosure, and of course, some components may be added or omitted as needed.

Each component of the aerosol generating device shown in FIG. 5 represents functionally distinct functional elements, and multiple components are implemented in an integrated form in the actual physical environment, or a single component is divided into multiple detailed functional elements. It can also be implemented in a separate form.

Referring to FIG. 5, the smoking article 1000 includes a heater 600, and an aerosol is generated by the heat generated from the heater. The generated aerosol passes through the smoking article 1000 and touches the user's mouth in contact with the filter unit. It can be inhaled through

The heater 600 may generate aerosol by heating the smoking article accommodated in the receiving space 900. That is, the heater 600 is arranged to surround the periphery of the accommodation space and can heat the smoking article 1000 accommodated in the accommodation space. The heater may be implemented as an electrical resistance heater.

The type of the heater may be a single heater or a multi-stage heater, and as shown in FIG. 5, a single heater may be used to simultaneously heat the paper segment and the medium portion.

Or, as another embodiment, it may have a multi-stage heater as shown in FIG. 6 so that the heater heats only the paper segment portion. In general, the greater the adsorption energy, the greater the desorption energy, so nicotine can be transferred only when used without loss of free nicotine by desorbing and transferring the free nicotine adsorbed on the material through minimal heating of the area where the absorption and release material is applied.

However, the scope of the present disclosure is not limited to these examples. The smoking article of the present invention may include a thermally conductive wrapper, and as described above, the arrangement of the paper segments and the medium portion also varies, so the arrangement of the heater can be changed depending on the design and configuration of the smoking article.

The vaporizer 1100 contains a liquid composition; a liquid storage unit containing the liquid composition; And it may include an atomizing element that atomizes the liquid composition. Although not shown in the drawing, a passage through which aerosol generated by the atomizing element can be transmitted is included between the accommodating spaces where smoking articles are accommodated in the vaporizer.

The atomizing element may be a heater for heating the liquid composition, or a vibrator that supplies vibration energy to the liquid composition. An aerosol can be generated by applying heat or vibration to the liquid composition. The liquid composition may include at least one of propylene glycol (PG) and glycerin (GLY), and at least one of ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. More may be included.

The control unit 800 can generally control the operation of the aerosol generating device 2000. For example, the control unit 800 can control the operations of the heater 600 and the battery 700, and can also control the operations of other components included in the aerosol generating device 2000. The control unit 800 can control the power supplied by the battery 700, the heating temperature of the heater 600, etc. The battery may be a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries may include, for example, lithium-ion batteries, nickel batteries (e.g., nickel-cadmium batteries), alkaline batteries, and/or the like.

Although the embodiments have been described with limited drawings as described above, those skilled in the art can apply various technical modifications and variations based on the above. For example, the described techniques are performed in a different order than the described method, and/or components of the described system, structure, device, circuit, etc. are combined or combined in a different form than the described method, or other components are used. Alternatively, appropriate results may be achieved even if substituted or substituted by an equivalent.

Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the following claims.

100: paper segment 200: pH adjustment medium unit
300: Tube filter unit 400: Filter unit
500: thermally conductive wrapper 600: heater
700: Battery 800: Control unit
900: Accommodating space 1000: Smoking items
2000: Aerosol generating device 3000: Aerosol generating system

Claims (10)

pH adjustment medium unit; and
comprising a paper segment comprising a light-absorbing material,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The smoking article further includes a thermally conductive wrapper surrounding at least one of the medium portion and the paper segment,
Smoking articles that prevent nicotine transfer.
According to paragraph 2,
The thermally conductive wrapper is one or more selected from the group consisting of aluminum, gold, silver, and copper,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The pH of the pH adjustment medium is 8 to 9.5,
Smoking articles that prevent nicotine transfer.
According to paragraph 4,
The pH adjustment medium unit,
Containing volatile nicotine,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The paper segment is disposed on one or both sides of the medium portion,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The moisture-releasing material is one or more selected from the group consisting of activated carbon, zeolite, alumina, silica gel, and bentonite,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The smoking article is,
It is a heated smoking article,
Smoking articles that prevent nicotine transfer.
According to paragraph 1,
The smoking article is,
Further comprising a tube filter unit and a filter unit,
Smoking articles that prevent nicotine transfer.
In the aerosol generating system,
An aerosol generating device including a battery and a heater that generates heat by power supplied from the battery; and
The smoking article of claim 1, which is accommodated in the aerosol generating device and generates an aerosol by heating the heater.